Telescopic introducer with a compound curvature for inducing alignment and method of using the same
First Claim
1. A telescopic introducer apparatus comprising:
- an outer elongate element; and
an inner elongate element having a preferred relative orientation with respect to the outer elongate element, the inner elongate element being telescopically disposed in the outer elongate element, the outer and inner elements including means for rotationally coupling the outer and inner elements with respect to the other to render the outer and inner elements substantially rotatable together when the inner elongate element is distally extended from the outer element.
1 Assignment
0 Petitions
Accused Products
Abstract
An introducer system for implantation of pacemaker leads into the venous system of the human heart through the coronary sinus is comprised of a flexible, elongate, outer elongate element having a first shape or bias along a portion. The first shape on the outer element may be prebiased or may be initially straight and subsequently biased once deployed in the body chamber. A flexible, elongate, telescopic inner elongate element has a second shape or bias on its distal portion and has the first shape or bias on a more proximal portion. The inner elongate element is telescopically disposed in the outer sheath. The outer and inner elongate elements are rotatable with respect to each other, such that when the inner elongate element is distally extended from the outer sheath, there exists an angular orientation between the inner and outer sheaths which is congruent, when there is at least partial alignment between the distal portion of the outer elongate element and the more proximal portion of the inner sheath, both having the first shape or bias. This results in the rotation of the distal second shape or curve of the inner elongate element into a predetermined three dimensional location.
-
Citations
29 Claims
-
1. A telescopic introducer apparatus comprising:
-
an outer elongate element; and an inner elongate element having a preferred relative orientation with respect to the outer elongate element, the inner elongate element being telescopically disposed in the outer elongate element, the outer and inner elements including means for rotationally coupling the outer and inner elements with respect to the other to render the outer and inner elements substantially rotatable together when the inner elongate element is distally extended from the outer element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
-
-
25. A telescopic introducer system for use in the coronary sinus venous system comprising:
-
an outer elongate element having a longitudinal lumen defined therein and having a bias along a first-shape portion; a nontorqueable inner elongate element having a longitudinal lumen defined therein and having a first bias along a first-shaped portion, and a second bias along a second-shaped portion, the inner elongate element being telescopically disposed within the outer elongate element; and an elongate, telescopic core having the second bias on its distal portion and having the first bias on a more proximal portion, the core being telescopically disposed in the lumen of the inner elongate element, the core being structurally reinforced so that it is torsionally stiff while remaining radially flexible, wherein the inner elongate element and the core in combination are relatively rotatable as a unit with respect to the outer elongate element, and when the inner elongate element along with the core are distally extended from the outer elongate element to position first bias of first shaped portion of the inner elongate element and the first bias of the more proximal portion of the core congruently with the first-shaped portion of the outer elongate element to rotationally couple the outer elongate element with the combination of the core and inner elongate element to render the outer elongate element, the core and inner elongate element rotatable as a unit. - View Dependent Claims (26, 27)
-
-
28. A telescopic introducer apparatus comprising:
-
an outer elongate element having a predetermined biased shape in a proximal portion of the outer elongate element; and an inner elongate element telescopically disposed in the outer elongate element, the inner elongate element having the predetermined biased shape in a proximal portion of the inner elongate element, the outer and inner elongate elements capable of being rotatably coupled with each other when the inner elongate element is extended distally from the outer elongate element into a deployment position and the predetermined biased shapes of the inner and outer elongate elements are congruently aligned with each other, thereby rendering the outer and inner elongate elements substantially rotatable together.
-
-
29. A telescopic introducer apparatus comprising:
-
an outer elongate element; and an inner elongate element, where the outer elongate element and inner elongate element each have corresponding proximal shapes, and when the inner elongate element is telescopically and distally extended from the outer elongate element into a deployment position, the corresponding proximal shapes of the inner and outer elongate elements couple with each other to limit relative rotation of the inner and outer elongate elements with respect to each other.
-
Specification